CeO2Co3O4CuO anode for direct utilisation of methane or ethanol in solid oxide fuel cells

Research output: Contribution to journalArticlepeer-review

Authors

Colleges, School and Institutes

External organisations

  • Federal University of Rio de Janeiro
  • Korean Institute of Energy Research (KIER)

Abstract

The present work aims at producing an electrocatalyst suitable to be used as anode in solid oxide fuel cells that operates with hydrocarbons or alcohols as fuels. A cerium-cobalt-copper anode was developed, characterised and tested with hydrogen, anhydrous methane or anhydrous ethanol as fuels. The produced catalysts were characterised by X-ray and thermogravimetric analysis as well as H 2 temperature-programmed reduction and post oxidation. For electrochemical performance, iV curves were taken in different test rigs,
guaranteeing reproducibility. Additionally, electrochemical impedance spectroscopy was performed in order to determine cell's polarisation effects. Post-mortem analysis was done to assess carbon by Raman spectroscopy and temperature-programmed oxidation. Microstructure images were obtained by scanning electron microscopy.
The cells have shown the ability to operate with hydrogen, methane, or ethanol with high performance. Negligible carbon was found in the post-mortem assessment after 24 h operation. Therefore, the multilayer anodes howed to be promising for the direct utilisation of carbonaceous fuels.

Details

Original languageEnglish
Pages (from-to)6340-6351
Number of pages12
JournalInternational Journal of Hydrogen Energy
Volume43
Issue number12
Early online date2 Mar 2018
Publication statusPublished - 22 Mar 2018